Oil scraping device of speed reducer
By introducing a worm gear transmission system and a sliding frame structure into the reducer, the problem of controlling the distance between the oil scraper and the gear was solved, enabling effective oil scraping and easy replacement of gears of different specifications, thus ensuring the normal operation of the reducer.
Patent Information
- Application Number
- CN202423156784.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing reducer oil scraping devices have difficulty effectively controlling the distance between the scraper blade and the gear, resulting in poor oil scraping effect or increased friction, which interferes with the normal operation of the gear.
An oil scraping device was designed, comprising a worm gear, a worm wheel, a rotating shaft, a slider, and a sliding frame. The worm gear is rotated by a knob, and the worm wheel drives the rotating shaft and slider to slide. The distance between the oil scraper and the reduction gear is adjusted to accommodate different gear specifications. The oil scraper can be quickly replaced via a button and a sliding frame.
It enables flexible adjustment of the distance between the oil scraper and the gear, ensuring the oil scraping effect and simplifying the oil scraper replacement process, thus ensuring the normal operation of the reduction gear.
Smart Images
Figure CN223536904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of speed reducer technology, and in particular to an oil scraping device for a speed reducer. Background Technology
[0002] A speed reducer is a power transmission mechanism whose main function is to reduce the speed of high-speed power sources such as electric motors and internal combustion engines, and correspondingly increase the torque. Speed reducers generally achieve this reduction through transmission components such as gears and worm gears.
[0003] Oil scraping is a crucial part of gearbox maintenance, reducing oil leakage and ensuring effective lubrication. Oil scraping is conveniently performed using a scraping device, which utilizes a rubber scraper that contacts the gear surface to remove oil. The rubber scraper has good elasticity and wear resistance, allowing it to closely adhere to the gear surface. As the gear rotates, the scraper removes the oil from the gear, allowing it to flow back to the oil sump.
[0004] However, reducers usually have multiple sets of gears inside, and the specifications and thickness of the gears inside the reducer may be different. This makes it inconvenient to control the distance between the oil scraper and the gears. If the distance is too large, the oil scraping effect will be poor, and if the distance is too small, the increased friction will interfere with the normal operation of the reduction gears. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an oil scraping device for a speed reducer, which aims to solve the problem in the prior art that it is inconvenient to control the distance between the oil scraper and the gear. If the distance is too large, the oil scraping effect is poor, and if the distance is too small, the increased friction will interfere with the normal operation of the speed reduction gear.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] An oil scraping device for a speed reducer includes a speed reducer. A fixed frame is provided on the inner bottom wall of the speed reducer. A knob is rotatably connected inside the speed reducer. A worm gear is fixedly connected to the outer wall of the knob. A worm wheel is meshed with the tooth end of the worm gear. A rotating shaft is fixedly connected inside the worm wheel. The outer wall of the rotating shaft is rotatably connected to the outer wall of the fixed frame. A rotating plate is fixedly connected to the outer wall of the rotating shaft. A slider is slidably connected inside the rotating plate. A sliding frame is fixedly connected to the outer wall of the slider. A slide rail is slidably connected to the outer wall of the sliding frame. The outer wall of the slide rail is fixedly connected to the outer wall of the fixed frame. A connecting rod is fixedly connected to the upper surface of the sliding frame. An oil scraper is slidably connected to the upper outer wall of the connecting rod. A speed reduction assembly is provided inside the speed reducer for reducing the rotational speed.
[0008] Preferably, the deceleration assembly includes a spindle, both ends of which are fixedly connected to the inside of the deceleration box, and a reduction gear is rotatably connected to the outer wall of the spindle.
[0009] Preferably, a locking block is fixedly connected to the upper surface of the connecting rod.
[0010] Preferably, a button is slidably connected inside the scraper, and a sliding bracket is fixedly connected to the outer wall of the button.
[0011] Preferably, a rack is fixedly connected to the outer wall of the sliding frame 2, and a spur gear is meshed with the tooth end of the rack 1, and the rack 2 is meshed with the tooth end of the spur gear.
[0012] Preferably, a second rotating shaft is fixedly connected inside the spherical gear, and the outer wall of the second rotating shaft is rotatably connected to the inside of the oil scraper.
[0013] Preferably, a sliding frame three is fixedly connected to the outer wall of the rack two, and the outer walls of both the sliding frame three and the sliding frame two are slidably connected to the inside of the oil scraper.
[0014] Preferably, both the sliding frame two and the sliding frame three are fixedly connected to a sliding rod inside, and a limit block is fixedly connected to the outer wall of the sliding rod. The outer wall of the limit block is set on the outer wall of the locking block.
[0015] Preferably, the outer walls of both the second and third sliding frames are fixedly connected to springs, and the outer walls of the springs are fixedly connected to the inside of the oil scraper.
[0016] This utility model has the following beneficial effects:
[0017] 1. In this utility model, the worm gear is driven to rotate by rotating the knob, and the worm gear drives the rotating shaft to rotate through the worm wheel. The rotating shaft drives the slider to slide through the rotating plate, and the slider drives the connecting rod to slide through the sliding frame. This can adjust the distance between the oil scraper and the reduction gear, adapt to different specifications of reduction gears, and ensure the oil scraping effect.
[0018] 2. In this utility model, the scraper can be installed by inserting the scraper into the upper side of the connecting rod and the locking block and pressing the scraper. Then, by pulling the button, the button drives the limiting block to slide through the sliding bracket two and the sliding bracket three, which can remove the scraper, thereby achieving the effect of quickly replacing the scraper. The operation is simple. By locking the locking block from both sides at the same time, the scraper can be kept stable during operation. Attached Figure Description
[0019] Figure 1 This is a perspective view of an oil scraping device for a speed reducer proposed in this utility model;
[0020] Figure 2This is a partial structural diagram of the worm gear of the oil scraping device for a speed reducer proposed in this utility model;
[0021] Figure 3 This is a partial structural diagram of the rack of the oil scraping device of a speed reducer proposed in this utility model;
[0022] Figure 4 This is a cross-sectional schematic diagram of the internal structure of the oil scraper plate of the oil scraper device for a speed reducer proposed in this utility model.
[0023] Legend:
[0024] 1. Gearbox; 2. Fixing frame; 3. Knob; 4. Worm gear; 5. Worm wheel; 6. Shaft 1; 7. Rotating plate; 8. Slider; 9. Sliding frame 1; 10. Slide rail; 11. Connecting rod; 12. Oil scraper; 13. Spindle; 14. Reduction gear; 15. Locking block; 16. Button; 17. Sliding frame 2; 18. Rack 1; 19. Circular gear; 20. Rack 2; 21. Shaft 2; 22. Sliding frame 3; 23. Limiting block; 24. Slide rod; 25. Spring. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Reference Figure 1 and Figure 2 This utility model provides an embodiment of an oil scraping device for a speed reducer, comprising a speed reducer 1, a fixed frame 2 provided on the inner bottom wall of the speed reducer 1, a knob 3 rotatably connected inside the speed reducer 1, a worm 4 fixedly connected to the outer wall of the knob 3, a worm wheel 5 meshing with the tooth end of the worm 4, a rotating shaft 6 fixedly connected inside the worm wheel 5, the outer wall of the rotating shaft 6 rotatably connected to the outer wall of the fixed frame 2, a rotating plate 7 fixedly connected to the outer wall of the rotating shaft 6, a slider 8 slidably connected inside the rotating plate 7, a sliding frame 9 fixedly connected to the outer wall of the slider 8, a slide rail 10 slidably connected to the outer wall of the sliding frame 9, the outer wall of the slide rail 10 fixedly connected to the outer wall of the fixed frame 2, a connecting rod 11 fixedly connected to the upper surface of the sliding frame 9, and an oil scraper 12 slidably connected to the upper outer wall of the connecting rod 11. A speed reduction assembly is provided inside the speed reducer 1, which is used to reduce the rotational speed.
[0027] Specifically, the gearbox 1 supports the rotation of the knob 3, which in turn drives the worm wheel 5 to rotate via the worm gear 4. The worm wheel 5 is fixedly connected to the rotating shaft 6, and the worm wheel 5 drives the rotating shaft 6 to rotate. The fixed frame 2 supports the rotation of the rotating shaft 6, which in turn drives the rotating plate 7 to rotate. The rotating plate 7 has grooves on both its upper and lower sides, and sliders 8 are slidably connected in the grooves on both sides. When the rotating plate 7 rotates, the sliders 8 slide in the grooves of the rotating plate 7, and at the same time, the sliders 8 drive the sliding frame 9 to slide. The slide rail 10 supports the sliding frame 9 to slide, and the sliding frame 9 drives the oil scraper 12 to slide via the connecting rod 11.
[0028] Reference Figure 1 The reduction assembly includes a spindle 13, both ends of which are fixedly connected to the inside of the reduction gearbox 1, and a reduction gear 14 is rotatably connected to the outer wall of the spindle 13.
[0029] Specifically, the spindle 13 supports the rotation of the reduction gear 14. By setting multiple sets of spindles 13 and reduction gears 14 inside the reduction gearbox 1, since the number of teeth of the driving gear and the driven gear are different, when the number of teeth of the driving gear is less than the number of teeth of the driven gear, the speed of the output shaft will decrease, and the torque will increase.
[0030] Reference Figure 1 , Figure 3 and Figure 4 A locking block 15 is fixedly connected to the upper surface of the connecting rod 11; a button 16 is slidably connected inside the scraper 12, and a sliding frame 17 is fixedly connected to the outer wall of the button 16; a rack 18 is fixedly connected to the outer wall of the sliding frame 17, and a spur gear 19 is meshed with the tooth end of the rack 18, and a rack 20 is meshed with the tooth end of the spur gear 19; a rotating shaft 21 is fixedly connected inside the spur gear 19, and the outer wall of the rotating shaft 21 is rotatably connected to the inside of the scraper 12; a sliding frame 22 is fixedly connected to the outer wall of the rack 20, and the outer walls of both the sliding frame 22 and the sliding frame 17 are slidably connected to the inside of the scraper 12.
[0031] Specifically, pulling button 16 can drive sliding bracket 2 17 to slide, oil scraper 12 supports the sliding of button 16, rack 1 18 drives rack 2 20 to slide through spur gear 19, rotating shaft 2 21 supports the rotation of spur gear 19, sliding bracket 2 17 and sliding bracket 3 22 can slide to both sides at the same time, sliding bracket 2 17 and sliding bracket 3 22 slide inside the oil scraper 12, and the inside of the oil scraper 12 is provided with a sliding groove.
[0032] Reference Figure 3 and Figure 4Slide rods 24 are fixedly connected inside both slide frame 27 and slide frame 3. Limiting blocks 23 are fixedly connected to the outer wall of slide rods 24. The outer wall of limiting blocks 23 is set on the outer wall of the locking block 15. Springs 25 are fixedly connected to the outer walls of both slide frame 27 and slide frame 3. The outer wall of springs 25 is fixedly connected to the inside of the oil scraper 12.
[0033] Specifically, sliding frame 27 and sliding frame 3 22 drive sliding rod 24 to slide. Sliding rod 24 slides inside scraper plate 12. Spring 25 is sleeved on the outside of sliding rod 24. Sliding rod 24 is connected to limit block 23. When limit block 23 retracts, spring 25 is compressed. When spring 25 can rebound, it will drive limit block 23 to slide out through sliding rod 24.
[0034] Working principle: When using this device, the fixed frame 2 is placed inside the lower side of the gearbox 1, and the reduction gear 14 is located between the two oil scraper plates 12. By rotating the knob 3, the worm 4 is driven to rotate, and the worm 4 meshes with the worm wheel 5 to rotate. The worm wheel 5 drives the rotating shaft 6 to rotate. The rotating shaft 6 rotates on the outer wall of the fixed frame 2, and the rotating shaft 6 drives the rotating plate 7 to rotate. The rotating plate 7 has a sliding groove. The rotating plate 7 drives the sliding frame 9 to slide through the slider 8. At the same time, the slider 8 slides in the sliding groove of the rotating plate 7. The two sliding frames 9 on both sides slide in opposite directions, which can drive the connecting rod 11 to slide in the opposite direction. The connecting rod 11 drives the oil scraper plate 12 to slide through the locking block 15. The two oil scraper plates 12 on both sides slide at the same time to adjust the distance between them and the reduction gear 14. When replacement is needed... When the scraper blade 12 is in operation, the sliding frame 17 is slidable by pulling the button 16. The sliding frame 17 drives the sprocket 19 to rotate through the rack 18. The sprocket 19 drives the rack 20 to slide. The rack 20 and rack 18 slide in opposite directions, causing the sliding frame 17 and the sliding frame 22 to slide in opposite directions. The sliding frame 17 and the sliding frame 22 simultaneously drive the sliding rod 24 to slide. The sliding rod 24 drives the limiting block 23 to retract into the interior of the scraper blade 12. At this time, the locking block 15 can be pulled out from the interior of the scraper blade 12. Then, the new scraper blade 12 is inserted on the upper side of the connecting rod 11 and the locking block 15. The scraper blade 12 is pulled down. The limiting block 23 retracts first, and the spring 25 rebounds and locks the locking block 15 through the limiting block 23, thus fixing the scraper blade 12.
[0035] This device can not only adapt to gears of different specifications to ensure the oil scraping effect, but also makes it easy to replace the oil scraper 12 and is simple to operate.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An oil scraping device for a speed reducer, comprising a speed reducer (1), characterized in that: The inner bottom wall of the gearbox (1) is provided with a fixed frame (2). A knob (3) is rotatably connected inside the gearbox (1). A worm gear (4) is fixedly connected to the outer wall of the knob (3). A worm wheel (5) is meshed with the tooth end of the worm gear (4). A rotating shaft (6) is fixedly connected inside the worm wheel (5). The outer wall of the rotating shaft (6) is rotatably connected to the outer wall of the fixed frame (2). A rotating plate (7) is fixedly connected to the outer wall of the rotating shaft (6). (7) has a slider (8) inside, and a sliding frame (9) is fixedly connected to the outer wall of the slider (8). A slide rail (10) is slidably connected to the outer wall of the sliding frame (9). The outer wall of the slide rail (10) is fixedly connected to the outer wall of the fixed frame (2). A connecting rod (11) is fixedly connected to the upper surface of the sliding frame (9). An oil scraper (12) is slidably connected to the upper outer wall of the connecting rod (11). A deceleration assembly is provided inside the deceleration box (1).
2. The oil scraping device for a speed reducer according to claim 1, characterized in that: The deceleration assembly includes a spindle (13), both ends of which are fixedly connected to the inside of the deceleration box (1), and a deceleration gear (14) is rotatably connected to the outer wall of the spindle (13).
3. The oil scraping device for a speed reducer according to claim 1, characterized in that: A locking block (15) is fixedly connected to the upper surface of the connecting rod (11).
4. The oil scraping device for a speed reducer according to claim 1, characterized in that: A button (16) is slidably connected inside the scraper (12), and a sliding bracket (17) is fixedly connected to the outer wall of the button (16).
5. The oil scraping device for a speed reducer according to claim 4, characterized in that: The outer wall of the sliding frame 2 (17) is fixedly connected to a rack 1 (18), the tooth end of the rack 1 (18) is meshed with a spur gear (19), and the tooth end of the spur gear (19) is meshed with a rack 2 (20).
6. The oil scraping device for a speed reducer according to claim 5, characterized in that: The inner side of the spur gear (19) is fixedly connected to a rotating shaft (21), and the outer wall of the rotating shaft (21) is rotatably connected to the inside of the oil scraper (12).
7. The oil scraping device for a speed reducer according to claim 6, characterized in that: The outer wall of the rack 2 (20) is fixedly connected to the sliding frame 3 (22), and the outer walls of the sliding frame 3 (22) and the sliding frame 2 (17) are slidably connected to the inside of the oil scraper (12).
8. The oil scraping device for a speed reducer according to claim 5, characterized in that: The sliding frame two (17) and the sliding frame three (22) are both fixedly connected with sliding rods (24). The outer wall of the sliding rod (24) is fixedly connected with a limiting block (23). The outer wall of the limiting block (23) is set on the outer wall of the locking block (15).
9. The oil scraping device for a speed reducer according to claim 5, characterized in that: The outer walls of the sliding frame two (17) and the sliding frame three (22) are both fixedly connected with springs (25), and the outer walls of the springs (25) are fixedly connected to the inside of the oil scraper (12).